Embalse Potrerillos is an artificial reservoir formed by the Potrerillos Dam on the Río Mendoza, located approximately 60–70 kilometers southwest of Mendoza City via Ruta Nacional 7. The dam, a concrete-faced rockfill structure completed in 2003, stands 116 meters high and 395 meters long, impounding a reservoir that stretches 12 kilometers in length and up to 3 kilometers in width, covering roughly 1,500 hectares. The reservoir sits at an elevation above 1,380 meters above sea level in the Potrerillos Valley, with the Cordón del Plata mountain range providing a dramatic backdrop.

The water on the reservoir is generally calm, making it suitable for paddlers without prior experience. Guided kayak tours operate year-round using sit-on-top kayaks in both single and double configurations. Tours typically depart from operator bases near the dam and paddle out to rocky outcrops and viewpoints offering perspectives of the surrounding Andean terrain. Guided kayak tours accommodate participants with a minimum age of 5 years and a maximum weight of 110 kg. Equipment typically provided on guided tours includes a wetsuit, windbreaker jacket, personal flotation device, paddle, and kayak, with transfers between the base and the water included.

The reservoir's water takes on a notably turquoise to green hue depending on light conditions. Along Ruta 82, several roadside viewpoints offer elevated perspectives over the water. The village of Villa Potrerillos sits uphill near the shore and provides access to the area.

Beyond lake kayaking, the Río Mendoza below the dam is used for whitewater rafting, with rapid difficulty ranging from Class 2 to Class 4 depending on the season and water levels. High water season runs from October through March, when snowmelt increases flow. The reservoir itself also supports windsurfing, kite surfing, and sport fishing, with rainbow trout, brown trout, and pejerrey present in the water. Several campsites are located in the vicinity, and operator bases typically offer changing rooms, showers, lockers, and basic refreshments.